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Bearing Supply

As a family-owned and -operated business, USA Roller Chain and Sprockets brings a family experience when you need to buy bearings online. Providing superior service to a global market, we have the inventory and bearing supply to support everyone, from end users to OEMs and resellers. If you're looking for where to find bearings, look no further than USA Roller Chain and Sprockets. We are a bearing supplier offering bearings with different levels of tolerance to fit your needs, from ABEC 1, the loosest tolerances, through ABEC 10, the tightest tolerances.

We supply rolling element bearings in which either a ball or roller (cylinder) is situated between two races. The rolling element reduces friction between the two races, allowing for axial rotation. A roller bearing typically has a cage to keep the rolling elements in place so they don't bind in the bearing. Bearings can be found in many different sizes, from less than an inch in diameter to many feet in diameter. Log on or call USA Roller Chain and Sprockets to find out how we can meet your bearing needs today.

Rolling Bearings

USA Roller Chain & Sprocket offers a wide variety of rolling bearings for industrial, mechanical and agricultural applications. Find ball bearings, roller bearings, cam rollers, bearing accessories and more.

ISO 15243 Bearing Failure Modes
Failure Modes Main Causes
1. Rolling Contact Fatigue
1.1. Subsurface Initiated Fatigue
  • Cyclic loading
  • Inadequate lubrication
1.2. Surface Initiated Fatigue
  • Surface imperfections
  • Material defects
  • Cyclic loading
2. Wear
2.1. Abrasive Wear
  • Abrasive contaminant ingress
2.2. Adhesive Wear
  • Insufficient or improper lubrication
3. Corrosion
3.1. Moisture Corrosion
  • Exposure to humid or wet environments
3.2. Frictional Corrosion
3.2.1. Fretting Corrosion
  • Vibration
  • Cyclic loading
  • Misalignment
3.2.2. False Brinelling
  • Vibration
  • Misalignment
4. Electrical Erosion
4.1. Excessive Current Erosion
  • Electrical discharge or stray currents in the system
4.2. Current Leakage Erosion
  • Insulation breakdown
  • Electrical faults
  • Improper grounding
5. Plastic Deformation
5.1. Overload Deformation
  • Excessive loads
5.2. Indentations from Particles
  • Environmental contaminants
6. Fracture and Cracking
6.1. Forced Fracture
  • Misapplication
  • Improper installation
  • Operational errors
  • Sudden impact loads
6.2. Fatigue Fracture
  • Cyclic loading
6.3. Thermal Cracking
  • Rapid heating or cooling
  • Local overheating

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